.form-group{
    width: 40rem;
    margin-left: 5rem;
    margin-top: 3rem;
}

.btn.btn-primary{
    margin-top: 3rem;
    margin-left: 3rem;
    width: 5rem;
    text-align: center;
}
.form-control{
    background: rgba(156, 152, 152, 0.5)
}